Definition - What does Nitrogen Narcosis mean?
Nitrogen Narcosis is the reversible variation in consciousness which takes place when diving at great depths. It is also known as narcosis, Martini effect, raptures of deep and inert gas narcosis. The anesthetic effect of various gases that take place at high pressures could be considered as a cause of narcosis. It leaves the diver in a state similar to that of inhalation of nitrous oxide and state of drunkenness. It can also occur during shallow dives but does not become observable at the depths of less than thirty meters.
Petropedia explains Nitrogen Narcosis
Inhalation of nitrogen when diving causes an intoxicating effect known as Nitrogen Narcosis. Divers feel the symptoms of narcosis at depths more than 100 feet. The symptoms of narcosis include difficulty in concentrating and attention, light-headedness, anxiety, poor judgment, hallucinations, decreased coordination and ultimately coma. It can be treated by moving up from the depth where the symptoms are experienced. But if the problem still continues then the diver must abort the dive. When the diver is back to the surface, the effects disappear completely. The risk can be reduced by safe practices of diving which include low work effort, maintenance of the visual cues, focused thinking and proper maintenance of diving equipment.